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Maintenance and Service Guide 5-13
Addendum 108431-001 (11-88) to
Manual No. 108033-003
Table 5-2. Advanced Diagnostics Error Codes Continued
Error
Code
Description
Recommended
Action
402-13 Printer interrupt, loopback and data
register failed.
The following steps apply to error codes 401-xx
through 498-xx:
1. If a printer is connected, be sure it is turned ON and in
the ONLINE mode.
2. Check the switch settings and jumper positions on
the multipurpose fixed disk controller board (see
Chapter 8).
3. Replace the printer and/or the printer cable and retest.
4. Replace the multipurpose fixed disk drive controller
board.
5. Replace the system board and retest.
402-14 Printer interrupt, loopback and control
register failed.
402-15 Printer interrupt, loopback data and
control register failed.
402-16 Printer unexpected interrupt received.
403-01 Printer pattern test failed.
498-00 Printer failed or not connected.
Video Display Unit Test
501-01 Video controller test failed. The following steps apply to error codes 501-xx
through 516-xx:
1. Replace the monitor and retest.
2. Replace the video display controller board and retest.
3. Replace the system board and retest.
502-01 Video memory test failed.
503-01 Video attribute test failed.
504-01 Video character set test failed.
505-01 Video 80 × 25 mode 9 × 14 character
cell test failed.
506-01 Video 80 × 25 mode 8 × 8 character cell
test failed.
507-01 Video 40 × 25 mode test failed.
Continued...